Vahdat in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Vahdat plotted against Districts of Republican Subordin and Tajikistan. The SNDi of new construction in Vahdat peaked in 1991-2005, compared to Districts of Republican Subordin which rose steadily and Tajikistan which followed a zig-zag trend with an overall increase. Most recently, Vahdat's incremental SNDi fell from 5.71 to 5.48 between 1991-2005 and 2006-2020. In terms of the aggregate network, Vahdat ranked 1st out of 4 cities in Districts of Republican Subordin and 15th out of 22 in Tajikistan as of 2020.

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

• Iizuka, Japan
• Bhargama, India
• Araxá, Brazil
• Kawardha, India
• Yakima, United States
• Imam Sahib, Afghanistan

In new street additions, Vahdat built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Iizuka fluctuated in its street-construction patterns and Kawardha built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Vahdat and Iizuka have been growing further apart in their street-network character since 1975.